Slug casting machine



Sept. 27, 1932.

V A. J. sroucsss SLUG CASTING MACHINE Filed Oct. 25, 1929 5 Sheets-Sheet 1 INVENTOR.

Sept. 27, 1932. A. .1. STOUGES 1,830,150

SLUG CASTING MACHINE Filed Oct. 25. 1929 5 Sheets-Sheet 2 A TTO E Yf Sept. 27, 1932 v A. J. STOUGES SLUG CASTING MACHINE Filed Oct. 25, 1929 5 Sheets-Sheet 5 Z IJVVENTO BY' J WM Sept. 27, 1932'. A. J. STOUGES 1,880,160

SLUG C' ASTING MACHINE Filed Oct. 25. 192-9 5 Sheets-Sheet 4 Sept. 1932. A. J. sTQUGEs 1,880,169

SLUG CASTING MACHINE Filed Oct. 25, 1929 5 Sheets-Sheet 5 Patented Sept. 27 1932 wire sTWT S NT FFQQ ANTHONY JVSTOUGES, 0F QUEENS VILLAGE, NEW YORK, ASSIGNOR T O MERGENTHALER T.

LINOTYPE COMPANY, A CORPORAT-ION-OF.NEW YORK snne cAsriNe MACHINE Application filed October 25, 1929. Serial No. 402,329.

This invention relates to typographical casting machines, such as 'linotype machines of the general organization represented in U. S. Letters Patent to G. Mergenthaler No. ":l36,532, wherein circulating matrices are re leased from a magazine in the order in Which their characters are to appear in print and then composed in. line, the composed line transferred to a vertically movable transporter or first elevator which presents them to a mold, the mold filled with molten :metal to form a slug or linotype against the mat rices which produce the type characters thereon, and the matrices thereafter elevated and returned through a distributing mechanism to the magazine from which they started. I l V In these machines, it is frequently necessary to vary the vertical position of the first elevator prior to casting, in order :to bring about the proper alignment of the matrix charactersavith the mold slot. Thus, in the use of regular two-letter matrices, Whose characters range from 5 pt. to 14 pt.'in height, the elevator is in most instances allowed to descend to its lowermost level; Whereas, in the use of head "letter matrices, Whose single characters range from 14 pt. to 36 pt., the elevator is arrested alt-a slightly higher level. In the former case, -the elevator banks directly upon the so-called vise frame, While in the latter case, a socalled filler piece or stop member is usually employed to arrest the elevator at the higher level. While composed lines of matrices of these different sizes may thus be presentedto the difierent molds at the proper levels, it is necessary when casting'from display matrices, whose characters range from 36 pt. to 4'5 pt. and above, to arrest the elevator at a still higher or third level, and machines capable of handling these display fonts are thereforeequipped with a second filler piece or stop member which may be brought into action when required to effect the arrest of the firsteleva-tor at such third level.'

When the two stop members are thus employed in the same machine, they are pivotally mounted upon the vise frame, andeach is provided with .a hinged contact portion through Which the "vise automatic is :actuated 1n the different arrested positions of the elevator (see "the Kennedy Patent No.

1,595,947). That is tosay, when the elevator is arrested by either stop membenthe hinged contact portionof said member is depressed by a pin in the elevator head and strips the vise automatic :as the elevator comes to rest,

so as to al lovv the machine to complete its cycle of operation. @thervvise, the vise-autoas otherwise damage to the matrices "or'eleva- V tor at the time of the lock-up is apt to result. The saineis true of the regular two-letter matrices or of the display matrices, it being necessary that the stop members be properly adjusted according to themold in use.

The present invention is intendedtoobviate "these and other difficulties, and aims to pre vent the presentation of a matrix line to the mold and the subsequent casting operation except under the proper conditions. To this end, Whenever the molds and stop members are n improper relat1ve .ad]ustment, automatic safety devices are providedto arrest theelevator in its descent at :a point above *thestop members so as to effect the stoppage of the machine through the medium of the vise automatic. In the preferred embodiment illustrated, these safety devices include arresting finger pivotally mounted in the first elevator and adapted, :as the latter is raised and lowered, to be moved under the control of the second stop member into and out of engaging relation to fixed ibankingblocks as sociated with the diiferent ,molds.' The specific construction and mode of operation will best be understood from the detailed description to follow.

In the accompanying drawings, the invenpt. display mold;

tion is shown merely in preferred form and by way of example, but obviously many changes and variations may be made therein,

. 3 is a detail perspective view, showing the manner of mounting the supporting bracket plate for the safetv device;

Fig. 4 is a front elevation, partly broken away, showing the level at which the elevator is arrested when the stop members are improperly adjusted for a regular mold Fig. 5 is a similar view, but showing the level at which the elevator is arrested when the stop members are properly adjusted for a regular mold;

Figs. 6 and 7 are vlews similar to Figs. 4

and 5, showing, respectively, the levels atwhich the elevatoris arrested when the stop members occupy an improper and a proper position of adjustmentfor, say, a 36 pt. headletter mold;

Figs. 8 and 9 are also views similar to Figs. 4c and 5, and showing respectively the levels at which the elevator is, arrested when the stop members occupy an improper and a proper position'of adjustment for, say, a

Fig. 10 is a front elevation, partly broken away, showing the regular stop member in a normal operative position and the elevator arrested thereby to present a line of tw0- Lletter matrices in the upper position Figs. 11, 12 and 13 are vertical sections taken respectively on the lines 11-11, 12-12 and 13 13.of Figs. 4, 6- and 8; and

Fig. 14 is a similar sectional view, show.-

'- ing the level at which a matrix line would,

in the absence of the present improvements,

'be presented to a head-letter mold whenboth stop members are in their inactive position;

Linotype machines capable of handling both head-letter and display "matrix fonts,

in addition to the regular matrix fonts, are

usually providedwith three different types of molds to correspond, these molds being -mounted in a rotary wheel ordisc A, which is manually adjustable to bring any one of the molds into use to the exclusion of the others.

The regular mold B (as best shown in Fig. 11) is formed with two aligning ribs B B adapted, by their engagement with the lower ears 2: of the ordinary two-letter matrices fully explained in X, to locate the lower or upper characters thereof in registry with the mold slot; whereas the larger head-letter mold C (Figs. 12 and 14) and the still larger display mold D (Fig. 13) are formed with only one aligning rib C or D which is adapted by its engagement with the lower ears 1 or 2 of the corresponding matrices Y or Z, to locate the single character of such matrices in registry with the mold slot. In this connection, however, it may be noted (compare Figs. 11, 12 and 13) that, while the thickness of the aligning ribC of the head-letter mold C is the same as that of the corresponding rib B of the regular mold B, the aligning rib D of the display mold D is considerably thinner, due to the fact that the larger characters of the display'matrices Z are punched with ref- .erence to a different datumline, all as more the Kennedy Patent No. 1,306,909. I Y

The first elevator E, whichprcsents the composed matrix lines'to the-,mold, in use, is provided as usual with two vertical pins or set screws E and E the former acting '3 as a stop to limit the descent-of the elevator, and the latter being arranged to operate the so-called vise automatici G as the elevator comes to rest. In casting type lines from the two-letter matrices X of the regular fonts, "the first elevator E is generally allowed to descend to its lowermost level, the stop pin E} at such times banking directly upon the vise frame F.; Undersuch conditions, the

matrices X (whether composed-atthe upper or lower level or'both) will be properlypresented to the mold B, the ears m being adapted to cooperate with the lower-aligning rib B or the upper aligning rib B according to the level at which the matrices are composed.

Under such conditions, too, the vise automatic G will be depressed by the pin E and the machine allowed to complete its cycle of operation, the mold disc A being immediately advanced to carry the mold B against the composed line for face alignment, and theelevator being lifted slightly to align the matrix characters horizontallywith the mold slot preparatory to'the casting of the slug.

In casting solid lines of italics from the 1 two-letter matrices X, it is common practice to compose the matrices, not at the upper level as would otherwise be necessary, but at the lower level and then to arrest the first elevator in a raised position with reference to the mold B so as to bring about theregistration and alignment of the lower (italic) characters with the mold slot. For this reason, the machine is usually equipped with a filler piece or stop member H, which (as 3 tion H to cooperate with the pin E in arresting the first elevator in its raised position, and with a hinged contact portion H to cooperate with thepin E in operating the vise automatic G in the arrested position of the first elevator.

Since the characters of the head-letter matrices Y are punched with reference to the same datum line as that-of the lower characters of the regular two-letter matrices X, the stop member H may be, and is, utilized in casting type lines from said head-letter matrices. In other words, the stop member H is also adapted, when in active, position, to arrest the first elevator E at the required level to locate the head-letter matrices Y in proper relation to the corresponding mold C, the lower ears 1 being adaptedto cooperate properly with the aligning rib C In the use of the larger display matrices Z, however, it is necessary to arrest the first elevator at a still higher level in order to present .a composed line of such matrices in proper relation to the corresponding mold D. Hence, there is usually provided a second stop member arranged directly alongside the first stop member and mounted to be turned about the same a-Xis into and out of operative position (see Kennedy Patent No. 1,595,947). In the present instance, this second stop member J: (as wi'll'be noted by reference to Figs. 1 and 9) is designedto supplement the member H, the two contact portions J J of the member J being arranged to coincide respectively with the contact portions H H of the member H when both members occupy their active position. For this reason, the contact portion J is made of such thickness as merely to compensate for the difference in thickness between the lip of the head-letter mold C and the lip D of the display mold D, so as to arrest the first elevator at the highest or third level when the two contact portions are stacked together for conjoint use. The contact portion J unlike the corresponding portion H is integral with the stop member J but it is also made relatively thin so that it may be capable of actuating the vise automatic G through the hinged portion H as the arresting pin E of the elevator banks upon the stacked contact portions J and H In the operation of the machine, failure on the part of the operator to adjustthe stop members H and J properly to correspond with the mold in use might result disastrously because of interferences between the parts during face alignment. If both of the stop membersH and J should (instead of being thrown out of the way) be left in active position when the regular mold B is brought into use, the two-letter matrices X would be presented improperly to the mold as indicated in Fig. 11, due to 'the fact thatthe first elevator is arrested damage iilO :the parts. such as Is represented in F 1g. 12, would arlse For example result, when the mold is advanced for 'face alignment, the mold 'l-ip B would strike against :the lower earsw and most likely cause A similar. condition,

if both stop members (instead of the stop member H alone) were leftin position when a lineof head-letter matrices Y is presented 3 to the mold C. If,1on the other hand, both of the stop members H and J were'left out of active position at a time when a line of head letter matrices Y' is presented to the corresponding mold C or a line of'display matricesZ is presented to the corresponding mold D, a condition such as is depicted :Figs. 14 and 13 would result, where the mold in advancing for face alignment would strike against the rear wall of the first elevator.

The present invention is intended to overcome the above-and other difficulties and contemplates safety means which areadaptedt arrest the operation of the machine whenever any of the foregoing or similar conditions arise through the inattention of the operator.

Such safety means (as best shown in Figs. .1 and 3) consist of a movablearresting finger K and ace-related arresting shoulder or lug.

L both carried by the first elevator E; and fixed banking blocks B C 'an dD associated with the molds B, C and 1), respectively, and which are arranged to cooperate with the said arresting members-in preventing or Permitting the descent of the elevator to' the required casting level according to the adjusted position of thestop members H and J.

The finger K (see Fig. 1) is formed at its lower end with an arresting portion K and constitutes one arm offan inverted U-shaped rocking bail K, whichis pivoted on a cross pin in a similarly shaped bracket plate L fastened by screws or similar fastening devices L to an intermediate bracket or spacing block L which is in turn fastened by screws or like devices to the elevator The other arm K of the rocking bail is provided at its lower end with a cam shoe K by which Y the bail may be rocked about its pivotal axis.

The bail K is arranged astride the elevator between tiie side members L L of the bracket plate L so as to position the finger K in a shallow recess 6 formed in the rear face of the elevator and to position the shoe K over the vise frame F. The shoe K, as may be observed, is spaced from the arm K by an intermediate block K which has a sliding engagement with an overlying segmental support L secured to the front side member L of the bracket plate L. The rear side member L is countersunk in the recess 6 of y the elevator and carries the aforementioned lug L which projects downwardly from the lower edge thereof alongside the arresting finger K A pull spring K, anchoredto the bracket plate L and connected to the top pore tion of the bail K, is employed to hold the arresting portion K of the finger K resiliently against the lug L The arresting portion K presents a lower contact surface spaced below the lug L and inclined up- .wardly from right to left, and an upper surface Z3 similarly inclined and which normally (and for reasons presently to appear) fits snugly against the lower edge of the lug L (see Figs. 3, l and 6).

. The banking blocks B C and D are herein shown as being secured to the mold disc A,

but it will be understood that, since each one hears a definite relation to the particular mold with which it isassociated, they may if desired be fastened directly to the molds or form an integral part thereof. These blocks are located so as to ;occupy, a position directly beneath the arresting finger K and the arresting lug L when the molds by an adjust ment of the disc A are brought into action; the block B of the regular mold B (see Figs. l and 5-), being formed with a single inclined banking surface Z) to cooperate with thearresting finger K the block C of the headletter mold C (see Figs. 6. and 7) being formed with an inclined banking surface 0 and a straight or horizontal banking surface a to cooperate with the finger K and the lug L respectively; and the block D of the display mold'D (see F igs. 8 and 9) being formed with a beveled cam surface d and a single banking surface cl to cooperate with the lug L V The arrangement of the parts is such that,

if the finger K is allowed to maintain its po- .The operation of the rocking bail K and the arrestingfinger K is controlled by the supplementalstop member J through the cam shoe K*, which latter is adapted, as the elevator descends, to engage said stop member when the latter happens to occupy its inactive position, or to stop short of the vise frame when the stop member occupies its active position. In the former event, theshoe l 4 will be cammed sidewlse toward the-left (the segment L serving throughthe spacing block K to absorb the'shock caused by contact or the shoe with the stop member J), and the bail K rocked in a clockwise direction against the tension of. the spring K to carry the finger K out of the path. of the mold bank'- ing blocks. In the latter event, the shoe K will be undisturbed and the arresting finger allowed to remain in its active position against the lug L so as to engage the banking blocks and arrest the descent of the elevator. The level at which the elevator is to be sustained in its descent is in this way determined by the finger K or the lugL according to the adjusted position'of the stop member J and-the particular mold in use.

'Fig. 4c shows an abnormal condition with the regular mold B in operative position to cooperate with a composed line of matrices X and the stop members H and J adjusted for a display mold D, and it will be seen that the arresting finger K under such adjustment of the stop members maintains its eng ing portion of the finger K to the lug U, the shock of the engagement, as well as the weight of the elevator, is sustained directly by the bracket plate L instead of being transmitted thereto through the relatively thin 1 arm K of the rocking bail K. Moreover, the

inclination of the banking surfaceb is adapted to lockthe finger in'its banking position so as to restrain it against accidental displacement;

On-the other hand (i. e., if the'stop members H and J occupy their inactive position I, as shown in Fig. 5), the finger K will be swung clear of the block B by the engage ment of the shoe K with the stop member J, and the first elevator E will not be arrested until the stop pin E thereof banks upon the vise frame F. The composed line of matrices X will thus be properly presented at the lowermost level to the mold B, the lower ears a:

of the matrices being brought into engaging 'of the machine by causing a disengagement p of the main driving clutch in the usual way. In this connection, it may be stated that, due 'to the close underlying relation of the arrestrelation to the lower'aligning rib B and the H upper characters thereof horizontally aligned with the mold slot. The vise automatic G will in such case be depressed by thepin E and the cycle of operation allowed to proceed.

Since the operation of the rocking bail K is controlled solely by the stop member J, the arresting finger K will also be moved to its inactive position when the stop member His employed to arrest the elevator at the intermediate level- Such a condition is shown in Fig. 10, the composed line of matrices Xbeing presented to the mold B at the upper casting level with the lower-projecting ears w of the matrices properly aligned with the upper aligning ribB? and the lower (italic) charl near-co acters brought into registry with the mold slot.

lVhen the head-letter mold C- is in use, either the finger K or the stop shoulder L is adapted by its engagementwith the block C of said mold to prevent the operation of the vise automatic G, according to the previously adjusted position of the stop members H and J, it being remembered that the elevator must be arrested at the intermediate level or that determined by the stop member H in order to-present a composed line of matrices Y to the mold C in themanner required. Hence, if both stop members should occupy their active position (Fig. 6-) as for the display mold D, the first elevator will be arrested at the safety level shown, by the engagement of the finger K with the inclined bank--- ing surface 0 of the block C or if bothstop -"members should occupy their inactive position, the finger K will be swung clear of the block G by the stop member J and allow the stop shoulderL to bank upon the horizontal surface -0 'of the block and thereby "arrest the elevator at a safety level. In either case, the pin E will fail to-depress the vise automatic Gr andhence will arrest the operation of the machine. the stop members are properly adjusted, as

m Fig. 7, (i. e. with the stop member J out of position and the stop member H in position), the elevator will be arrested by the stop member H at the proper (intermediate) casting level and effect the depression of the vise autmatic G, the finger K being moved out of the way of the block C by the stop member J but the lug L being prevented from contacting with the banking surface 0 In the case of the display mold I), the lug TIB serves exclusively by contact with the banking surfaced of the block D to stop the descent of the elevator before it can release the vise automatic G when the stop member H is in active position and the stop member d in inactive position. Such a condition is shown in Fig. 8, and the efiect would obvious- 1y be the same if the position of the respective stop members were reversed or if both were thrown to their inactive position; -When both stop members are in active position, as

they should be (see Fig. 9), the arresting finger K is pushed aside as the elevator approaches the casting level by the beveled surface (Z of the block D but the lug L will -not yet have engaged the banking surface d of the block when the elevator comes to rest upon the stacked stop members.

It will now be clear that'the safety devices act in all cases to prevent the presentation of a composed line of matrices to the mold in use unless the stop members are adj usted to arrest the first elevator at the proper level required for that mold, whether it be regular mold, a head-letter mold, or a display mold. As before stated, these different QUIZ However, when casting takes place and before any damageto the parts can occur.

In practice, all three molds will preferably be mounted upon the same disc and selected for independent use by the rotary adjustment of said disc, but it will be understood that the same effect can be had by placing only one mold on the disc at a time and by removing such mold and replacing'it with another when desired. When in the appended claims reference is made to a series of molds of diffcn. ent sizes capable of independent selection, this is intended to embrace these or other arrangements for interchanging the molds, so long as the molds when interchanged are capa-ble of cooperating with the safety devices in the required-manner. It may al'sobe noted Y that, while the stop members herein shown are of the pivoted type, they could be madeof the sliding or any other type and mounted on the vise frameor otherwise so-long as they are adapted to perform their required functions. As to the safety devices, these too could be variously modified without altering their essential functions or mode of operation.

Having thus described my invention, what I claim is:

1. In a typographical casting machine, the combination of aplurality of molds of different sizes and capable of independent selection, a transporter for presenting a composed line of matrices to theselected mold, adjustable means for determining thelevelat which the composed line is presented to the mold, and safety devices for preventing the presentation of the composed line to the mold when said level-determining means are improperly adjusted with reference to themold in use, said safety devices including variant banlring blocks associated with the respective molds and cooperative arresting portions carried by the transporter.

2. In a typographical casting' machine, the combination of a plurality of molds of different sizes and capable of independent selection, a transporter for presenting a composed line of matrices to the selected moldadjustable means for determining the level at which the composed line is presented to the mold, and safety devices adapted to stop the operation of the machine when said leveldetermining means are improperly adjusted with reference to the mold in use, said safety devices including variant banking blocks associated with the respective molds and cooperative arrest'ing portions carried by the transporter.

3. In a typographical casting machine, the

combination of a plurality of molds of dif-a l ferent sizes and capable of independent se lection, a transporterfor presenting a composed line of matrices to the selected m'old, an ad ustable stop member for determlning gthe level at which the composed line is presented to the mold, and safety means oper- 'ableto prevent or permit the casting operation accordin to the adjusted position of said stop member, said safety means includ-.,

95mg variant banking blocks associated with the respective molds and Cooperative arresting portions carried by the transporter.

. l. Ina typographical casting machine,the

combination of a plurality of molds of dif .ferent sizes and capable of independentselecto the mold, and safety means controlled by the stop member and operable to prevent or permit the casting operation according to the adjusted position of said stop member, said safety means including variant banking blocks associated with'the respective molds and cooperative arresting portions carried by the transporter.

5. In a typographical casting machine, the combination of a plurality of molds of different sizes and capable'of independent selection, a transporter for presenting a composed line of matrices to the selected mold, two adjustable stop members for arresting the transporter at one level or another according to the mold selected, and safety means operable to prevent or permit the presentation of the composed'line to the mold in use according to the adjusted position of the stop members, said safety means including variant banking blocks associated withthe respective molds and cooperative arresting portions carried by the transporter.

6. In a typographical casting machine, the combination of a plurality of molds of different sizes and capable of'independent selection, a vertically movable transporter forpresenting a composed line of matrices to the selected mold, two adjustable stop members for arresting the transporter at one or another level according to the mold selected, and safety means adapted to arrest the transporter during its descent in advance of said stop members when they are improperly adj usted with reference to the mold in use, said safety means including variant banking bloc-ks associated with the respective molds and cooperative arresting portions carried by the transporter.

7. In a typographical casting machine, the combination of a plurality of molds of different sizes and capable of independent selection, a vertically movable transporter for presenting a composed line of matrices to the r selected mold, two adjustable stop members for arrestingthe transporter at one or anothcombination of a'plurality of molds of dif-- ferent sizes and capable of independent selection, a vertically movable transporter for presenting a composed line of matrices'to the selected mold, two adjustable stop members for arresting the transporter at one or another level according to the mold selected, an auto matic device controlled by the transporter for stopping the operation of the machine, and safety means adapted to arrest the transporter during its descent in advance of thestop members to arrest the operation of the machine when the stop members are improperly ad usted with referenceto the mold in use, said safety means including variant banking blocks associated with the respective isb molds and cooperative arresting portions carried by the transporter. v

9 In a typographical casting machine,

lection, a transporter for presenting composedlmes of matrices to the molds, an adthe combination of a plurality of molds ofdifferent sizes and capable of independent,se--

justable stop member for determining the.

levels at which the composed line is presented to the molds, fixed banking blocks associated with the respective molds, and means carried by the transporter and adapted toengage said blocks whenthe stop member is improperly adjusted with referenceto the mold in use so as to arrest. the elevator in advance of said stop member, for the purpose described.

10. In a typographical casting machine,

the combination of a plurality of molds of different sizes, a'mold carrier adjustableat will to bring a selected mold into use, a verresting the elevator at one-or another level according tothe mold selected, and safety means for stopping the operation of the ma.- chine when the adjustments of the mold carrier and the stop members do not correspond,

said safety means including variant banking blocks associated with therespect-ive molds and cooperative arresting portions carried by the transporter.

11. In a typographical casting machine, the combination of a plurality of molds of different sizes and capable of independent selection, a vertically. movable transporter for presenting composed lines of matrices to the r molds, two adjustable stopmembers for an 'tically movable transporter for presenting a J composed line of matrices to the selected mold, two adjustable stop members for arselection, a vertically movable transporter for presenting composed lines of matrices to the molds, two adjustable stop members for arresting the transporter at different levels to bring the lines in proper relation to the respective molds, and safety means for stopping the operation of the machine when the stop members are improperly adjusted with reference to the mold in use, said means including fixed banking blocks associated with the respective molds, and an arresting finger carried by the transporter and movable automatically into or out of engaging relation to said blocks.

13. A combination as specified in claim 12, characterized by the fact that the arresting finger therein recited is spring-actuated and controlled by one of the stop members when in inactive position.

14. In a typographical casting machine, the combination of a plurality of interchangeable molds of three different sizes, means forpresenting a composed line of matrices in casting position at one of three different levels according to the mold in use, adjustable means for determining the casting level of the composed line, and safety means controlled by the selection of a mold and the adjustment of the level determining means to prevent the presentation of the composed line at a casting level in conflict with that required for the mold in use.

15. In a typographical casting machine, the combination of a plurality of interchangeable molds of three different sizes, means for presenting a composed line of matrices in casting position at one of three different levels according to the mold in use, adjustable means for determining the casting level of the composed line, and safety means controlled by the selection of a mold and the adjustment of the level determining means to arrest the operation of the machine when the level determining means is improperly adjusted with reference to the mold in use.

16. In a typographical casting machine, the combination of a plurality of interchangeable molds of three different sizes, a vertically movable transporter for presenting a composed line of matrices in casting position at one of three difierent levels, two adjustable stop members for determining the casting level of the transporter, and safety means controlled by the stop members for arresting the transporter at a non-casting level when said stop'members are improperly adjusted with reference to the mold in use.

17. In a typographical casting machine, the combination of a plurality of interchangeable molds of three different sizes, a vertically movable transporter for presenting a composed line of matrices in casting position at one of three different levels, two adjustable stop members for determining the casting level of the transporter, and safety means controlled by the stop members for arresting the operation of the machine when said stop members are improperly adjusted with reference to the mold in use.

In testimony whereof, this specification has been duly signed by ANTHONY J. STOUGES. 

